Average Co-Inventor Count = 1.60
ph-index = 2
The patent ph-index is calculated by counting the number of publications for which an author has been cited by other authors at least that same number of times.
Company Filing History:
1. American Railcar Industries, Inc. (3 from 14 patents)
2. Greenbrier Central, LLC (1 from 1 patent)
4 patents:
1. 10604165 - Covered hopper railcar for carrying flowable materials
2. 10035521 - Covered hopper railcar for carrying flowable materials
3. 6875942 - Methods and systems for fabricating spiral welded cylinders
4. 6717093 - Methods and systems for fabricating spiral welded cylinders